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The diameter of a roller is 84 cm and its length is 120 cm. It takes 600 complete revolutions to move once over to level a playground. Find the area of the playground in ma.

The diameter of a roller is 84 cm and its length is 120 cm. It takes 600 complete revolutions to move once over to level a playground. Find the area of the playground in ma.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
Area levelled in 1revolution = 27trh = 2 x 22 >< 42 >< 120 cm2 7 = 31680 cm2• Area levelled in 500 revolutions (area of playground) = 31680 >< 500 cm2 = = 1584 m2• 31680 x500 2

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